CONTENTS. xi 



CHAPTER IX. 



PAGE 



ORDINARY CULTIVATION (continued) MAIN DIFFERENCES BE- 

 TWEEN THE CULTIVATION OF STIFF AND LIGHT SOILS 



ROOT CULTIVATION AUTUMN CULTIVATION HOW TO CLEAN 



A FOUL FIELD 118 



CHAPTER X. 



CLASSIFICATION OF CROPS PRINCIPLES OF CULTIVATION FOR 

 ROOT CROPS FOR CORN CROPS FOR GRASS CROPS FOR 

 "FODDER" CROPS AND "CATCH" CROPS SYLLABUS OF 

 CROP CULTIVATION ... ... ... ... ... 132 



CHAPTER XI. 



FERTILIZERS RELATION BETWEEN MECHANICAL AND CHEMICAL 



METHODS OF LAND IMPROVEMENT LIEBIG'S VIEWS 



GENERAL MANURES FARMYARD MANURE M. VILLES' 



VIEWS ROTHAMSTED RESULTS WHY FARMYARD MANURE 



IS ESTEEMED ITS CHEAPNESS ARTIFICIAL MANURES 



DEFECTIVE TEACHING AS TO MANURING EFFECTS DEPEND- 

 ENT UPON CONDITION OF SOIL AND OF CLIMATE ... 146 



CHAPTER XII. 



ACTION AND RE-ACTION OF FARMYARD DUNG THROUGHOUT A RO- 

 TATION DISADVANTAGES FROM USE OF GENERAL MANURES 



OBJECTIONS TO USE OF SPECIAL MANURES PERMANENT 



EFFECT OF ONE CROP MANURES PRINCIPLES IN APPLYING 



SPECIAL MANURES ALLEGORICAL EXPRESSIONS TO BE 



AVOIDED EFFECTS OF PHOSPHATIC AND OTHER MINERAL 



MANURES UPON THE PRINCIPAL FARM CROPS SIMILAR 



EFFECTS OF NITROGENOUS MANURES ROTHAMSTED RESULTS 



EFFECTS OF FERTILIZER ON GRASS LAND BASIC CINDER 



PRINCIPLES IN CONDUCTING FIELD EXPERIMENTS ... 160 



